Ventilated building block



FIG. 1 is a right, front perspective view of a ventilated building block in accordance with a first embodiment of my new design;

FIG. 2 is a front elevation view of the first embodiment thereof;

FIG. 3 is a rear elevation view of the first embodiment thereof;

FIG. 4 is a top plan view of the first embodiment thereof;

FIG. 5 is a bottom plan view of the first embodiment thereof;

FIG. 6 is a left side elevation view of the first embodiment thereof;

FIG. 7 is a right side elevation view of the first embodiment thereof;

FIG. 8 is a section view of the first embodiment taken along the line 8-8 in FIG. 2;

FIG. 9 is a right, front perspective view of a ventilated building block in accordance with a second embodiment;

FIG. 10 is a front elevation view of the second embodiment thereof;

FIG. 11 is a rear elevation view of the second embodiment thereof;

FIG. 12 is a top plan view of the second embodiment thereof;

FIG. 13 is a bottom plan view of the second embodiment thereof;

FIG. 14 is a left side elevation view of the second embodiment thereof;

FIG. 15 is a right side elevation view of the second embodiment thereof;

FIG. 16 is a section view of the second embodiment taken along the line 16-16 in FIG. 10;

FIG. 17 is a right, front perspective view of a ventilated building block in accordance with a third embodiment;

FIG. 18 is a front elevation view of the third embodiment thereof;

FIG. 19 is a rear elevation view of the third embodiment thereof;

FIG. 20 is a top plan view of the third embodiment thereof;

FIG. 21 is a bottom plan view of the third embodiment thereof;

FIG. 22 is a left side elevation view of the third embodiment thereof;

FIG. 23 is a right side elevation view of the third embodiment thereof; and,

FIG. 24 is a section view of the third embodiment taken along the line 24-24 in FIG. 18. 

CLAIM The ornamental design for a ventilated building block, as shown and described. 